On macOS:
brew install gmp
brew install openssl
sudo ln -sf /usr/local/opt/[email protected] /usr/local/opt/openssl
On Linux (Ubuntu)
sudo apt install libgmp-dev libssl-dev make gcc g++
On Linux (Cent OS / Amazon Linux 2)
sudo yum install glibc-static gmp-devel gmp-static openssl-libs openssl-static gcc-c++
On macOS:
brew install --cask docker
open /Applications/Docker.app
On Linux, reference official documentation here.
For macOS, you can reference this guide. For Linux, you can reference this guide.
Most repos from PositionExchange Github assumes the GOPATH convention. More information here.
Clone and set up all of the repos with the following set of commands:
- Create the appropriate directories:
mkdir -p $(go env GOPATH)/src/github.com/PositionExchange
cd $(go env GOPATH)/src/github.com/PositionExchange
If you get 'unknown command' or something along those lines, make sure to install golang first.
- Clone this repo & dependent repos.
git clone https://github.com/PositionExchange/mcl.git
git clone https://github.com/PositionExchange/bls.git
git clone https://github.com/PositionExchange/posichain.git
cd posichain
- Build the posichain binary & dependent libs
go mod tidy
make
Run
bash scripts/install_build_tools.sh
to ensure build tools are of correct versions. If you get 'missing go.sum entry for module providing package <package_name>', rungo mod tidy
.
Included in this repo is a Dockerfile that has a full posichain development environment and
comes with emacs, vim, ag, tig and other creature comforts. Most importantly, it already has the go environment
with our C/C++ based library dependencies (libbls
and mcl
) set up correctly for you.
You can build the docker image for yourself with the following commands:
cd $(go env GOPATH)/src/github.com/PositionExchange/posichain
make clean
docker build -t posichain .
If your build machine has an ARM-based chip, like Apple silicon (M1), the image is built for
linux/arm64
by default. To build forx86_64
, apply the--platform
arg like so:docker build --platform linux/amd64 -t posichain .
Learn more about the
--platform
arg and multi-CPU architecture support, here and here.
Then you can start your docker container inside the posichain directory with the following command:
docker run --rm --name posichain -it -v "$(pwd):/root/go/src/github.com/PositionExchange/posichain" posichain /bin/bash
Note that the posichain repo will be shared between your docker container and your host machine. However, everything else in the docker container will be ephemeral.
If you need to open another shell, just do:
docker exec -it posichain /bin/bash
Learn more about docker here.
The make
command should automatically build the Posichain binary & all dependent libs.
However, if you wish to bypass the Makefile, first export the build flags:
export CGO_CFLAGS="-I$GOPATH/src/github.com/PositionExchange/bls/include -I$GOPATH/src/github.com/PositionExchange/mcl/include -I/usr/local/opt/openssl/include"
export CGO_LDFLAGS="-L$GOPATH/src/github.com/PositionExchange/bls/lib -L/usr/local/opt/openssl/lib"
export LD_LIBRARY_PATH=$GOPATH/src/github.com/PositionExchange/bls/lib:$GOPATH/src/github.com/PositionExchange/mcl/lib:/usr/local/opt/openssl/lib
export LIBRARY_PATH=$LD_LIBRARY_PATH
export DYLD_FALLBACK_LIBRARY_PATH=$LD_LIBRARY_PATH
export GO111MODULE=on
Then you can build all executables with the following command:
bash ./scripts/go_executable_build.sh -S
Reference
bash ./scripts/go_executable_build.sh -h
for more build options
One can start a local network (a.k.a localnet) with your current code using the following command:
make debug
This localnet has 2 shards, with 11 nodes on shard 0 (+1 explorer node) and 10 nodes on shard 0 (+1 explorer node).
The shard 0 endpoint will be on the explorer at
http://localhost:9599
. The shard 1 endpoint will be on the explorer athttp://localhost:9598
.You can view the localnet configuration at
/test/configs/local-resharding.txt
. The fields for the config are (space-delimited & in order)ip
,port
,mode
,bls_pub_key
, andshard
(optional).
One can force kill the local network with the following command:
make debug-kill
You can view all make commands with
make help
To keep things consistent, we have a docker image to run all tests. These are the same tests ran on the pull request checks.
Note that all testing docker container binds a couple of ports to the host machine for your convince. The ports are:
9500
- Shard 0 RPC for a validator9501
- Shard 1 RPC for a validator9599
- Shard 0 RPC for an explorer9598
- Shard 1 RPC for an explorer9799
- Shard 0 Rosetta (for an explorer)9798
- Shard 1 Rosetta (for an explorer)9899
- Shard 0 WS for an explorer9898
- Shard 1 WS for an explorer
This allows you to use curl, PSC CLI, postman, rosetta-cli, etc... on your host machine to play with or probe the localnet that was used for the test.
To run this test, do:
# Using your local environment
make test-go
# Or using Docker Compose
docker-compose up test
This test runs the go tests along with go lint, go fmt, go imports, go mod, and go generate checks.
To run this test, do:
make test-rpc
This test starts a localnet (within the Docker container), ensures it reaches a consensus, and runs a series of tests to ensure correct RPC behavior. This test also acts as a preliminary integration test (more through tests are done on the testnets).
The tests ran by this command can be found here.
If you wish to debug further with the localnet after the tests are done, open a new shell and run:
make test-rpc-attach
This will open a shell in the docker container that is running the Node API tests.
Note that the docker container has the PSC CLI on path, therefore you can use that to debug if needed. For example, one could do
psc blockchain latest-headers
to check the current block height of localnet. Reference the documentation for the CLI here for more details & commands.
To run this test, do:
make test-rosetta
This test starts a localnet (within the Docker container), ensures it reaches a consensus, and runs the Construction & Data API checks using the rosetta-cli. This test also acts as a preliminary integration test (more through tests are done on the testnets).
Similar to the RPC tests, if you wish to debug further with the localnet after the tests are done, open a new shell and run:
make test-rosetta-attach
Posichain is licensed under GNU Lesser General Public License v3.0. See LICENSE
file for
the terms and conditions.
Posichain includes third-party open-source code. In general, a source subtree
with a LICENSE
or COPYRIGHT
file is from a third party, and our
modifications thereto are licensed under the same third-party open source
license.
Also please see our Fiduciary License Agreement if you are contributing to the project. By your submission of your contribution to us, you and we mutually agree to the terms and conditions of the agreement.
See CONTRIBUTING
for details.
- Fully sharded network with beacon chain and shard chains
- Sharded P2P network and P2P gossiping
- FBFT (Fast Byzantine Fault Tolerance) Consensus with BLS multi-signature
- Consensus view-change protocol
- Account model and support for Solidity
- Cross-shard transaction
- VRF (Verifiable Random Function) and VDF (Verifiable Delay Function)
- Cross-links
- EPoS staking mechanism
- Kademlia routing
- Resharding
- Integration with WASM
- Fast state synchronization
- Auditable privacy asset using ZK proof